Enjoy lasting beauty with these 15 perennials that withstand tough conditions and reward you with blooms season after season: 1. Threadleaf Coreopsis Full sun, poor soil, drought-tolerant 2. Summer Phlox Sun to shade, ideal near black walnut trees 3. Variegated Solomons Seal Great for shady woodland areas 4. Speedwell Deadhead to encourage blooms into summer 5. False Indigo Deep-rooted, avoid relocating after planting 6. Catmint Cut back in spring for a bushier plant 7. Columbine Self-seeding, handles heat with partial shade 8. Mountain Mint Loved by bees and butterflies 9. Hellebore Shade-loving, blooms in winter/spring 10. Asiatic Lily Container-friendly with bold blooms 11. Coneflowers Choose native types for pollinators 12. Liatris Drought-tolerant, striking flower spikes 13. Arkansas Amsonia Glows gold in fall 14. Beebalm Rich soil, attracts pollinators 15. Yarrow Heat and drought-tolerant, easy to grow Most thrive in USDA Zones 39, offering structure and color for every garden type. Plant once, enjoy for years!